半刚性混凝土组合节点有限元分析

摘要

The study uses the finite element analysis software of SAP2000 to simulate the semi -rigid character of composite joints and establishes the finite element model of semi -rigid concrete -filled steel tubular.It simulates the load (P) -displacement (Δ)lag relationship of semi -rigid concrete -filled steel tubular joint under low cycle repeated load,and verifies the correctness of the model through the experiment results,which provides the basis for the simulation of composite frame of semi -rigid concrete -filled steel tu-bular.%采用有限元分析 SAP2000软件，利用软件中转动弹簧单元模拟组合节点的半刚性，建立了半刚性钢管混凝土组合节点有限元模型。对半刚性钢管混凝土节点在低周反复荷载作用下的荷载（P）－位移（Δ）关系滞回曲线进行了模拟，并通过试验结果验证了模型的正确性，为模拟半刚性钢管混凝土组合框架提供了基础。